Dr. William Bayer, MD

Dr. William Bayer, MD

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Endocrinology, Diabetes & Metabolism  ·  
Male  ·  
57 y/o
(25)

Accepting new patients

Dr. William Bayer, MD is an endocrinology, diabetes & metabolism specialist in Carol Stream, IL and has been practicing for 32 years. He specializes in endocrinology, diabetes & metabolism and internal medicine.

Northwestern Medicine Regional Medical Group

501 Thornhill Dr

Carol Stream, IL 60188
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Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield of Illinois
  • Cigna
  • Cigna-HealthSpring
  • CorVel
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • HealthLink
  • HFN
  • Humana
  • LifeSynch
  • Medicaid
  • MultiPlan
  • UniCare

Learn about Dr. Bayer

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Bayer performs your care needs compared to other doctors.

Thyroid Cancer
very high
more than 99% of peers
Diabetes With Renal Manifestations
very high
more than 99% of peers
Hypothyroidism
very high
more than 99% of peers

Dr. Bayer's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

Care Philosophy

This content was provided by Dr. Bayer ""Better people means better experiences. Our care team is committed to delivering results that change lives." "

2  Specialties

  • Endocrinology, Diabetes & Metabolism
  • Internal Medicine

2  Board Certifications

  • Diabetes, Metabolism & Endocrinology
    Accredited by: American Board of Internal Medicine*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

51  Conditions Treated

Less

Read Less

2  Procedures

  • Continuous Glucose Monitoring
  • Diabetes Counseling

Background Check

0 Malpractice Claims

No malpractice history found for Illinois.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

  • Loyola University of Chicago / Stritch School of Medicine
    Medical School | Graduated 1986
  • Loyola University Medical Center
    Internship Hospital | Completed
  • Loyola University Medical Center
    Residency Hospital | Completed
  • Loyola University Medical Center
    Fellowship Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Bayer has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Bayer does not have any memberships or affiliations listed. If you are Dr. Bayer and would like to add memberships or affiliations, please update your profile.

Dr. Bayer's Reviews

3.4
Likelihood of recommending Dr. Bayer to family and friends
25 total reviews (11 have comments)

Likelihood to Recommend (25)

  • 5
    (14)
  • 4
    (0)
  • 3
    (1)
  • 2
    (1)
  • 1
    (9)

Dr. Bayer's Performance

  • Trustworthiness

    VERY GOOD
  • Explains condition(s) well

    VERY GOOD
  • Answers questions

    VERY GOOD
  • Time well spent

    VERY GOOD

Office & Staff Performance

  • Scheduling

    VERY GOOD
  • Office environment

    VERY GOOD
  • Staff friendliness

    VERY GOOD
  • Average wait time

    16 to 30 minutes

Patient Comments (11)

Dr. Bayer has always listened to my symptoms, not just bloodwork results. When the tests he ran came back normal, but my symtpoms said otherwise, he ran more tests until he figured out what was wrong. When my prognosis wasn't great, he personally called me to go over the results and then followed...more
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Dr. Bayer is a Diabetic Endocrinologist that I have complete trust in has really turned my A1C Goal/Goals to the Positive. He is very knowledgeable in his field and he always spends appropriate time w/patient/patients. I will be 62 in December and have been battling Diabetes since 1999/2000. He has...more
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Do not take the bad reviews seriously! Dr. Bayeris amazing & caring! So, if you need a really good doctor that cares about your health & does not set a timer when you walk in, he is your answer to getting your health back on track! I came to him when there was no one else. He cared & I am now on...more
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Dr Bayer is a no-nonsense doctor that is very knowledgable and thoruough. I have gone to him for many years before a car accident and am now able to see him again. I could not find his phone number so I looked it up. As I read the reveiws that were positive, I could relate. As I read the...more
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He needs to retire. He's clearly mad at everything, he was 30 minutes late to an 8:00 am meeting and told me out of the gate he already didn't know what to do. He took no time to listen and understand. he's terrible, go somewhere else
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